Banks are back in the market for global network services, with technology and manufacturing companies joining them as key innovators in communications. Renewals and upgrades of communications infrastructure in financial services this year have benefited super-regional operators such as COLT and Telstra. At the top end, BT and Orange Business Services continue to fight for global WAN business, but Verizon Business has moved up a gear with some of the biggest outsourcing deals of the year so far.